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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Casati, R. |
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Siller, Ingo
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Publications (4/4 displayed)
- 2023Ballistic tests on hot-rolled Ti-6Al-4V platescitations
- 2022Microstructural adjustment of hot-rolled Ti–6Al–4V based on a CCT diagramcitations
- 2022In-situ high-temperature EBSD characterization during a solution heat treatment of hot-rolled Ti-6Al-4Vcitations
- 2020Diffusion Bonding of High-Alloyed Tool Steels with Maraging and Precipitation Hardening Steelscitations
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article
Microstructural adjustment of hot-rolled Ti–6Al–4V based on a CCT diagram
Abstract
The effects of post-processing heat treatments on hot-rolled Ti–6Al–4V with extra low interstitial concentration were investigated. The 2 mm sheets were rolled in the single β phase field region and subsequently cooled in air. A continuous cooling transformation (CCT) diagram was generated, revealing the strong influence of the cooling rate on both microstructure and hardness. Cooling rates between 0.01 and 200°C s−1 were selected. While rapid cooling resulted in a martensitic transformation β → α′, a decrease in the cooling rate led to a progressive spheroidization of the lamellar (α + β) microstructure. With a focus on the established CCT continuous cooling transformation diagram, this study contains insight on the microstructure evolution of the Ti–6Al–4V ELI alloy during cooling from the single β phase field region.